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monitta
3 years ago
9

On a string of lights, for every 6 green lights, there are 4 white. If there are 30 green lights, how many white lights are ther

e?

Mathematics
1 answer:
GenaCL600 [577]3 years ago
5 0
If there are 4 white lights for every 6 green lights, then there are 20 white lights for every 30 green lights.

6 * 5 = 30 green lights
4 * 5 = 20 white lights

I hope this helps!
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Answer:

The sum of the first five classroom numbers in a row is 5k + 20

Step-by-step explanation:

Since the smallest classroom​ number on the side of the building is numbered k​ and each consecutive odd integer is separated by a difference of  

2.

Therefore:  

k is the first class room.

k +  2  is the second class room.

k +  4  is the third class room.

k + 6 is the third class room.

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The sum of the five consecutive class rooms are given as:

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collecting alike terms we get

=  k + k + k + k + k + 2 + 4 + 6 + 8

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3 years ago
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3 years ago
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jarptica [38.1K]

Answer:

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8 0
3 years ago
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